HubSpot Contacts Salesforce Integration | Dropdown to Open Text Field
You can map a Hubspot dropdown to a Salesforce text field (in that direction). Ignore the warning - it’ll work as long as the options follow your text field validations.
You may have some unwanted results when free text that’s not a dropdown option originates from Salesforce and syncs back into Hubspot. It’ll create new options for the Hubspot property for each unique text value. Depending on who/how the field is being used, it could get out of control. (speaking from experience)
It’s not possible to map two properties with different property types. The field types must match for data to sync between HubSpot and Salesforce without error.